baber/WOPTO huggingface dataset:
Patent GB-415464-A (GB)
Title: Improvements in thermionic valve oscillation generators
IPC: H03B5/10
Filed: 1933-02-25
Abstract: 415,464. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and KINMAN, T. H., Ladbroke House, Bilton Road, Rugby. Feb. 25, 1933, No. 5811. [Class 40 (v).] A back-coupled valve generator has the anode connected to the tuned circuit through a continuously - variable capacitative tapping, which permits progressive variation of the load impedance in the anode circuit. As shown in Fig. 2, the anode of the oscillator valve 1 is connected to an intermediate plate c interposed between the fixed plates a, b forming the condenser of the oscillatory circuit. The plate c is movable between the plates a, b to vary the coupling of the anode circuit to the oscillatory circuit. In Fig. 3, the anode is connected to the movable plate of a differential condenser 6 which has its fixed plates connected across the condenser 3 of the oscillatory circuit.
Patent GB-1510957-A (GB)
Title: National research development corp investigation of the gas content of molten metals
IPC: G01N33/20
Filed: 1975-05-07
Abstract: 1510957 Determination of the gas content of metal NATIONAL RESEARCH DEVELOPMENT CORP 7 May 1975 [8 Feb 1974] 05866/74 Heading G1B The gas content of molten metal in bulk, for example steel, copper or alumium is investigated by a method comprising substantially isolating in probe 2 within the bulk metal a sample of the molten metal of predetermined volume, causing a stream of inert carrier gas to flow through the sample (from inlet 10 to outlet 13) to cause transpiration of gas from the sample, sensing (by means 14) in the stream of carrier gas emerging from the sample the instantaneous concentration of at least one component of the desorbed gases and deriving from the sensed information the value of a parameter of the function which represents the variation with time of the instantaneous concentration, for example the peak and/or integrated concentration. The sampling probe shown has a lower opening 5 closable by plug 6 which is carried by plunger 3, itself retractable by means of bellows 11 to allow flow of molten metal into probe 2. The probe of Fig. 3 (not shown) has a permanently open annular passage (33) at its lower end.
Patent GB-1189811-A (GB)
Title: Slow Wave Structure
IPC: H01J23/50
Filed: 1967-02-07
Abstract: 1,189,811. Travelling-wave tubes; cathoderay tubes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 7 Feb., 1967 [7 Feb., 1966; 14 Feb., 1966], No. 5898/67. Heading H1D. The input or output coupling to a helical slow-wave structure 8 formed of metal strip is provided by a contact pin 10 which projects axially into, and engages, the end turn only of the helix, which end turn is of reduced diameter. The capacitance introduced by the protrusion of the pin into the helix is reduced by forming the protruding end portion with four symmetrically arranged, spaced, projecting studs, as shown, or with a steatite annulus (Fig. 3b, not shown). The pin 10 is of such radius, relative to that of the surrounding conductive cylinder 7, that the resulting coaxial line structure has a characteristic impedance of 50 ohms, the radius of the pin being reduced within the supporting insulating member 12 to the extent required to compensate for the effect of the dielectric constant of the latter. The tube is provided with a coaxial coupling 13, the inner conductor 11 of which is connected to the pin 10, and with an adjustable end block 15. In a further embodiment, Fig. 5a, a non-reflective termination to the slowwave structure is provided by connecting the contact pin to a carbon resistor 28 mounted in a tapered end member 29. The arrangement may be employed in the travelling wave deflection system of a cathode-ray tube.
Patent GB-1398236-A (GB)
Title: Warning device
IPC: A01K97/12
Filed: 1971-03-04
Abstract: 1398236 Bite indicators C SAGNELLA 1 June 1972 [4 March 1971] 5987/71 Heading A1A [Also in Division H1] A warning device for use in connection with the sport of rod fishing comprises warning means 1, 2 (a lamp and a buzzer), a normally open switch 9 (a microswitch), and a weight 14, the assembly being mounted on a fishing rod so that when a fish takes a bite weight 14 vibrates and causes switch 9 to intermittently close, operating the warning means. The assembly includes a battery 3 and is enclosed 'by a dome 20 in a water-proof casing 19 mounted on the rod by clip 21. In the first embodiment, Fig. 1, weight 14 is mounted on threaded spindle 11 joined to the switch operating spring 12 to close contacts 10, 16, but in the second embodiment, Fig. 2 (not shown), spindle 11 is connected to a pivoted lever which depresses the switch push button.
Patent GB-127605-A (GB)
Title: Improvements relating to Flare-light Shells.
Inventor: DAVIDSON SAMUEL CLELAND
IPC: F42B12/40
Filed: 1917-04-27
Abstract: 127,605. Davidson, S. C. April 27, 1917. Pyrotechnic devices. -Consists mainly in making flare-light projectiles with an air space g<1>, g<2> between the flare-light charge e and the time-fuse d<1>, which is ignited at the base by the propellant cartridge c, and transmits ignition to the charge e by means of meal powder j. The space l above the meal powder may be empty or fitted with loose flare-light powder. The top closure h is blown off at the time the flare-light is ignited; and, to ensure that this end shall remain at the top when the projectile falls to the ground, the centre of gravity is disposed nearer the base b. This projectile may be discharged from the mortar described in Specification 13510/15. Specifications 17802/15 and 126,057 are referred to in the Provisional Specification.
Patent GB-503275-A (GB)
Title: Butter cutting machine
IPC: A01J23/00
Filed: 1938-02-25
Abstract: 503,275. Cutting butter. HILGERS, W. Feb. 25, 1938, No. 6002. Convention date, Dec. 24, 1937. [Class 5 (i)] [Also in Group V] A machine for comminuting large masses of butter comprises a number of knife blades mounted to rotate about a common axis with their cutting edges arranged transversely thereof, and means for rotating the said axis about a second axis parallel thereto. The mass of butter is placed in a chamber 4 containing battens 8 which prevent the butter from rotating. Two sets of knives 11 are mounted in supports 12 on axles 15, 16 which are rotatably mounted in a housing 17. The supports 12 are formed so that the knives extend obliquely aud the front faces 13 form abutments for the butter. The axles 15, 16 carry planet pinions 18, 19 which mesh with a sun wheel 20 fixed to a stationary housing 31. The housing 17 carrying the axles 15, 16 is mounted on an axle 21 which is rotated by a worm 24 from a motor 29. The rotating knives are shielded by a hood 38 having an opening at the bottom through which the cut butter falls into a vessel. The whole machine may be mounted on castors for transport.
Patent GB-578041-A (GB)
Title: Improvements in or relating to electrically operated calculating equipment
IPC: G06F7/40
Filed: 1941-05-10
Abstract: 578,041. Calculating - apparatus. STANDARD TELEPHONES & CABLES, Ltd., HARTLEY, G. C., and REYNOLDS, W. J. May 10, 1941, No. 6072. [Class 106 (i)] An electrical calculating-apparatus for performing multiplication in radix two comprises a circuit for obtaining the partial products and circuits for adding the digital values in each denomination including the necessary carryover to obtain the solution. The factors are entered on the terminals I and M, Fig. 1 ; the multiplier relays YU ... YZ and their contacts are operated or not operated according to the value of the digits of the multiplier and the other relays TP ... ZZ operate or remain unoperated in accordance with the digital value of the products of the respective digits The values represented by the condition of the relays are added by the circuit arrangements shown in part in Figs. 2 and 3 and the solution is obtained on lamps. The circuit of the lamp LL for the digit of the 2<0> or lowest denomination is completed by relay ZZ when operated. The circuit of the lamp LK for the next denomination 21 is completed over the back and front and front and back contacts of the relays ZY, XY respectively. If both of these relays are operated no circuit is completed to the lamp, but a carry-over relay XJA is operated to transfer a digit to the denomination 2<2>. In denomination 2<2>, the circuit of the lamp LJ is completed if an odd number of the relays ZX, XX, WX and XJA is operated. The value to be carried over to the denomination 23 is 0, 1 or two digits depending on the number of relays operated. For this purpose, relays XIA and XIB are provided. The circuit of the lamp LI for the 2<3> denomination depends on the four relays ZW, XW, WW and VW and on the transfer relays XIA and XIB. The circuits for the lamps of the higher denominations are arranged in a similar manner with the appropriate number of transfer relays. If it is desired to transfer the result to another circuit, the lamps may be replaced 'by relays. Specification 577,893 is referred to in the Provisional Specification.
Patent GB-325123-A (GB)
Title: Improvements in and relating to machines for filling moulds with viscous chocolate
IPC: A23G1/20
Filed: 1929-02-25
Abstract: 325,123. Le Cerf, H. Feb. 25, 1929. Single-acting piston pumps; plungers; valves, arrangement of.-In machines for filling moulds with chocolate, of the type involving an adjustable-stroke piston, the piston 14, Figs. 1 and 2, works in a wide shallow casing 13 corresponding to the length of the moulds and is guided by concave sides engaging fixed cylinders 16. Chocolate passes from a heated container through a flanged duct 11 communicating with the casing 13 through a rotary valve 12 which is turned to connect the casing to a discharge opening 15. A forked lever 17, operating the piston 14 through rods 18, is mounted upon a pin slidable in a slot 20 and connected to the valve 12 by a rod 23. Below the outlet 15 is a rotary spindle 24 geared to the valve 12 and furnished with openings 25, the number and length of which is determined by interchangeable, wedge-shaped separating members 27, Fig. 4, secured to the spindle 24 by nuts 32 on headed bolts engaging a longitudinal slot 31. A stationary scraper 26 engages the spindle 24. To prevent solidification of the chocolate, a cylinder 34 containing an electric heater is provided.
Patent GB-1495603-A (GB)
Title: Rotating terminal block assembly
IPC: H04Q1/14
Filed: 1975-02-13
Abstract: 1495603 Electric connectors COOK ELECTRIC CO 13 Feb 1975 [14 March 1974] 6227/75 Heading H2E A rotatable terminal block assembly comprises a terminal block 24 rotatably mounted between the side walls 38, 40 of a housing 22 and having terminals 130 extending between faces 34 (36, Fig. 3, not shown) edges 102 (144, Fig. 6, not shown), and first gates (146-150) and second gates 152-156 both projecting from the edge (144), the side walls 38, 40 being interconnected by a rear wall 42 in which are first exits 48 (-52) adjacent an edge 54 and the second exits 56-60. The terminals 130 each comprise a wire wrapping end 132, (134) on the faces 34, (36) connected to conduction of equipment wires 32 and jumper wires 30 which enter through the exits 56-60 and 48 (-52) and through the gates 152-156 and (146-150) respectively. Projections 82, (86) from the side edges (84), 88 of the block are rotatably housed in holes 70, (80) of the side walls 38, 40 to permit the block to be raised to the Fig. 2 position where it is held by a wedge 90. In its closed position, Fig. 1, a latch 92 engages the edge 102 and guard panels 140, 142 and a U-shaped guard 100 protect an operator against the terminals and the latch; there is a cover 28. Mounting means include screw holes 106-(108), 125, 126 and a bracket 26 for attachment to a frame 104.
Patent GB-355180-A (GB)
Title: Improvements relating to high frequency electrical apparatus
IPC: H05K9/00
Filed: 1931-02-27
Abstract: 355,180. Inductances. BRITISHTHOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Brokaw, C. A. ; 339, Vley Road, Scotia, New York, U.S.A.) Feb. 27, 1931, No. 6241. Convention date, Feb. 28, 1930. [Class 37.] Figs. 1 and 2 show a high-frequency detector .combination in which the inductances are housed in detachable metallic casings 6, 7, with metal fronts 15, 16. Connections are effected through plugs 13 and sockets 14. Effective contact between plates 15, 16 and the casing 5 is obtained by flexible contact strips 17. The units 6, 7 may be mounted on a single front panel member, Fig. 3 (not shown).
Patent GB-271414-A (GB)
Title: Improvements in or relating to systems for transmitting and receiving wireless and the like telegraphy and telephony
IPC: H01Q5/00
Filed: 1927-03-07
Abstract: 271,414. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Plebanski, J.). May 18, 1926. [Convention date]. Addition to 211,157. Transmitting systems ; filter circuits ; thermionic amplifiers; multiplex signalling.-According to the parent Specification several aerials are mutually coupled and are all excited from the same source of oscillations, the output being preferably taken from only one of the aerials. According to the present Specification several coupled circuits are so dimensioned as to give a resonance curve which has several peaks, so that a multiple group of carrier frequencies may be transmitted. According to the Specification as open to inspection under Sect. 91 (3) (a) a single transmitter may be employed and a wide band of modulation frequencies or two narrow side bands may be passed the resonance curve being rectangular. An inter-valve coupling may comprise several coupled circuits A, B, C, Fig. 5, with resistances R arranged as shown and, if desired, an antireaction condenser K. This subject-matter does not appear in the Specification as accepted.
Patent GB-826856-A (GB)
Title: Improvements relating to small arms
Inventor: PERRY CLAUDE ALFRED
IPC: F41A15/14
Filed: 1956-03-01
Abstract: 826,856. Smallarms. BIRMINGHAM SMALL ARMS CO. Ltd. March 1, 1957 [March 1, 1956], No. 6404/56. Class 119 Relates to a bolt-action rifle and to an extractor provided on the bolt. According to the invention a part - annular lateral projection 7, Fig. 2, of the extractor engages for lateral sliding movement in a groove 3, Fig. 1, near the forward end of the bolt 1, which forward end has a cut-away portion 5, Fig. 6, communicating with the groove 3 and adapted to receive a longtiudinally extending segmental part 9 of the extractor such that the peripheral surface of the part 9 completes the cylindrcal outer profile of the bolt. The part 9 is resiliently held in contact with the cut-away portion 5 of the bolt and the breech end of the barrel is enlarged so that, when the bolt is closed, it closely surrounds the forward end portion of the bolt and extends rearwardly beyond the groove 3 as shown in Fig. 2. The part 9 has a claw portion 11 and. a groove 13 for engagement by the rim of a cartridge. The part 9 may be resiliently held in contact with the cut-away portion 5 of the bolt by a spring-urged plunger 17, Fig. 4, having an inclined end portion 21 engaging a correspondingly inclined surface at the rear of the extractor. The enlarged breech end of the barrel serves the purpose of forming a relatvely gas-tight seal and thereby reducing the rearward discharge of flame in the event of a "blow-back" occurring. In a modified arrangement the laterally projecting part 7 of the extractor may be pivotally mounted within the groove 3 and instead of the plunger 17, a leaf spring may engage with a recess in the outer part of the extractor.
Patent GB-949130-A (GB)
Title: Kiln control method and apparatus
IPC: F27B7/42
Filed: 1962-02-20
Abstract: <PICT:0949130/C1/1> Rotary furnace equipment for burning lime or cement includes means for moving the ignition point 38 in the opposite direction to changing material temperatures sensed by a device 64 covering area 157 at or near the maximum material temperature.  Movement of the ignition point is controlled generally by the temperature of the combustion air supplied by a fan 35 below a reciprocating, clinker-cooling grate 18 and heated further by a burner 50 within the hood 16. Variations in the depth of material on the grate 18 are detected by a pressure sensing device 58 below the grate and corrected by the operator through a rheostat 60 controlling a magnetic clutch 31 in the grate drive 22.  A temperature sensing device 70 located in the ascending gas stream above the grate enables the fuel supply to the burner 50 to be controlled.  This fuel is supplied by a branch 53 controlled by valve 55 from the main supply, or, preferably, by a separate pipe 54 controlled by valve 56.  In a modification, Fig. 2 (not shown), the burner 50 is disposed in a separate flue opening into the hood 16.  The control system takes account of the differences between observed and desired temperatures, both of the air and the treated material (see Division F4).  The formation of hardened rings in the furnace is inhibited, and a uniform quality product obtained.
Patent GB-1136178-A (GB)
Title: Apparatus and method of laying the foundations of a structure
IPC: E02D23/16
Filed: 1967-02-10
Abstract: 1,136,178. Subaqueous structures. BAGGERMAATSCHAPPIJ DIRK VERSTOEP N.V. 10 Feb., 1967 [11 Feb., 1966], No. 6499/67. Heading E1H. A method of laying a section of a subaqueous tunnel 1 comprises the steps of depositing a layer 4 of foundation material e.g. gravel, placing a hollow flexible cellular body or mattress 10 upon said layer, supporting said section at the desired level by e.g. cables 6 and pontoons 9; and charging said body with a foundation material so as to close the gap between the base of the structure and said layer. The body 10 may be made of woven material and charged with sand in the form of a slurry, which is pumped into the body through pipes 12. Alternatively, the body 10 may be made of a foil e.g. P.V.C. or polyethylene sheet-material, and charged with cement mortar.
Patent GB-509389-A (GB)
Title: Improvements in or relating to the manufacture of cheese
IPC: A23C19/05
Filed: 1939-02-28
Abstract: 509,389. Cheese. FEAR. E. D. Feb. 28, 1939, No. 6584. [Class 84] In making cheese, more particularly soft cheeses such as cottage cheese, from whole, skimmed or reconstituted milk or mixtures thereof, the milk is rendered substantially neutral by means of calcium or magnesium oxide or hydroxide and is then coagulated. The reconstituted milk may be prepared from evaporated or condensed milk or milk powder. The pH value of the milk is before the coagulation preferably adjusted to 6.6-7.4 and may be determined by using an indicator, e.g. brilliant yellow, neutral red, phenol sulphophthalein, m-nitrophenol or rosolic acid. The coagulation may be effected by means of rennet or pepsin and the curd separated and, if desired, cooked at about 90‹ F. The cheese may be flavoured by adding anhydrous dextrose or other sugar or a lactic organism culture to the milk prior to coagulation. Cream which is preferably brought to a pH value of 6.6-7.4. by addition of calcium or magnesium oxide and which may contain 18-20 per cent of butter fat may be added to the curd to increase the fat content of the cheese, e.g. to 5 per cent or more by weight. In an example, after adjustment of the pH value of the milk, 5-5.75 per cent of dextrose is added and the milk heated to 90‹ F. ; the rennet is then added, the milk being kept at 90‹ F. and the curd separated and worked up to cheese. In another form, the milk after adjustment of its pH value is heated to 142-145‹ F., kept at this temperature for 30 mins., cooled to 72‹ F. and rennet added, the temperature being kept at 72‹ F. ; the curd is cut when ready and cooked at 90‹ F., cream being added if desired. A lactic culture may be added to the milk used in these examples.
Patent GB-176785-A (GB)
Title: Improved manufacture of magnesium carbonate from dolomite
IPC: C01F5/24
Filed: 1922-03-07
Abstract: Magnesium carbonate is prepared from dolomite by treating a suspension of the burnt dolomite in water or alkali carbonate solution with carbon dioxide under ordinary, or increased pressure, the proportion of burnt dolomite being so adjusted or the treatment with carbon dioxide so controlled that part of the magnesia in the dolomite is always present as a deposit.  In an example, 1000 kilos of burnt dolomite are mixed with 8000 litres of water, and treated with carbon dioxide under pressure at 12 DEG  C.  The mixture is filtered, the filtrate containing about 85 grms. of hydrated magnesium carbonate per litre.  Specification 17888/00 is referred to.
Patent GB-609065-A (GB)
Title: Improvements in portable optical film projectors
IPC: G03B21/10
Filed: 1946-03-05
Abstract: 609,065. Optical-projection apparatus. ALFIERI,B. March 5, 1946, No. 6791. [Class 97 (i)] Portable apparatus comprises a box containing a film projector and having a window for direct projection on to an external screen and also a mirror and a translucent screen, the mirror being movable into the light beam to reflect the image on to the translucent screen. As shown, the box 1 has a hinged end wall 4 and guides 5 between which the kinematograph projector 3 may be slid, when withdrawn, up to a stop 6. An aperture, with detachable cover is provided in the end wall 7 for the external projection. Alternatively, a hinged mirror 12 may be swung into the light beam to project the image on to the screen 9 connected to the casing by an extensible bellows 10 and covered, when closed, by the hinged wall 11. The mirror may be pushed to the inoperative position by the projector entering the casing and retained by a spring catch. In an alternative embodiment, the projection screen is hinged to the box about a vertical axis along one edge and is moved to the operative position by rotation about this axis.
Patent GB-994589-A (GB)
Title: Improvements in or relating to metering devices for liquids
Inventor: DEAKIN CYRIL REGINALD
IPC: F02M25/00
Filed: 1963-02-20
Abstract: 994,589. Treating charge of I.C. engines. STERLING MACHINERY (LEICESTER) Ltd. Feb. 20, 1964 [Feb. 20, 1963], No. 6834/63. Heading FIB. [Also in Division F2] A device for controlling the supply of liquid lubricant, in the form of a mist, to the explosive mixture supplied to the cylinders of an internal combustion engine, comprises an adjustable needle 14 onto which lubricant drips from the bent over part 20 of a feed tube 21 to pass therefrom through a seating 16 and a low pressure pipe 18 to the inlet manifold of the engine. The needle 14 and its seating 16 are mounted in a valve block 13 having an internal thread for attachment to a bottle 12 containing the lubricant. A transparent domed cover 22 is air-tightly fitted to the block 13 and encloses the bent part 20 so that the low pressure in the pipe 18 communicated to the cover 22 draws lubricant from the container 12.
Patent GB-857515-A (GB)
Title: Electrically heated continuous flow type hot water apparatus
IPC: F24H1/10
Filed: 1957-03-01
Abstract: 857,515. Electric water heaters. ECKERFELD, A. March 1, 1957 [March 3, 1956], No. 6841/57. Class 39(3). An electrically heated continuous flow type water heater compriser a hand operated inlet valve, a base plate 1 and a channel element 2 of insulating material providing a flow channel constituted by arcuate recesses 3, 4 and 5, a heating element disposed in an enlarged central portion 41 of the flow channel, and an electric switch, the switch and inlet valve being mounted in the space circumscribed by the arcuate recesses. The inlet valve, comprising a stem 9, a seating 11, a diaphragm 8 and a body 10, is operated by a rotary knob 23 and, when open, allows water to pass through the heater via a channel 12 penetrating the plate 1, a radial recess 13, the recess 3, 4 and 5, a bore 18 in the channel element 2 and a swing arm discharge pipe 19. The switch is closed by depressing the knob 23 so that the conical end 30 of a sleeve 21 carried by the valve stem 9 closes contacts 16, 17 and 161, 171 to connect the heating element to the supply circuit ; a pin 24 inter-acting with a cam 25 ensures that the switch cannot be closed unless the inlet valve is open. In a modification, Fig. 3 (not shown), the switch is of the diaphragm type operated by water pressure.